While 14.2.1 was stable, it lacks several modern features found in current versions:
Editors could change text or colors in Premiere without opening After Effects. adobe after effects cc 2017 1421
Let me know how you'd like to into this specific version. A June 2017 Update to After Effects CC Is Now Available While 14
Improved Team Projects stability, ensuring footage dependencies didn't prevent file deletion. Major Features Introduced in the 14.2 Cycle While 14.2.1 was stable